System Requirements

Supported Operating Systems

Note: Downloading Start executable will download the latest supported version for your operating system.

Microsoft Windows

Client Version	Server Version	Version
Microsoft Windows 11	Microsoft Windows Server 2022	Latest version available
	Microsoft Windows Server 2019	Latest version available
Microsoft Windows 10 (32-bit and 64-bit)	Microsoft Windows Server 2016	Latest version available
Microsoft Windows 8.1 (32-bit and 64-bit)	Microsoft Windows Server 2012 R2	Latest version available
Microsoft Windows 8 (32-bit and 64-bit)	Microsoft Windows Server 2012	Latest version available
Microsoft Windows 7 (32-bit and 64-bit)	Microsoft Windows Server 2008 R2	Latest version available
Microsoft Windows Vista (32-bit and 64-bit)	Microsoft Windows Server 2008	3.0.0 – 3.5.5
Windows XP (32-bit and 64-bit)	Microsoft Windows Server 2003 R2	3.0.0 – 3.5.5
	Microsoft Windows Server 20003	3.0.0 – 3.5.5

Mac OS

Client Version	Version
macOS 14.X Sonoma	Latest version available
macOS 13.X Ventura	Latest version available
macOS 12.X Monterey	Latest version available
macOS 11.X Big Sur	Latest version available
macOS 10.15 Catalina	Latest version available
macOS 10.14 Mojave	Latest version available
macOS 10.13 High Sierra	4.4.2031.107
macOS 10.12 Sierra	4.4.2031.107
OS X 10.11 El Capitan	4.4.2031.107
OS X 10.10 Yosemite	4.4.2031.107
OS X 10.9 Mavericks	4.4.2031.107
OS X 10.8 Mountain Lion	4.4.2031.107
Mac OS X 10.7 Lion	4.0.4
Mac OS X 10.6 Snow Leopard	4.0.4

Linux

• Linux kernel 2.4 and higher (64 bit)
• glibc 2.12 or newer
• systemd
• X Window System

Tested on: 

• Ubuntu 16.04, 18.04, 20.04
• Debian 10, 9
• CentOS 8

Not supported:

• Wayland
• Linux 32-bit
• arm64 architecture

Internet Connection

The recommended minimum Bandwidth is 56 Kbps.

Bandwidth consumption during audio/video call:

Video quality and mic/consumption	Network consumption resource manager [kb/s]	Network consumption net balancer [kb/s]
Video quality default high	21,5	23 – 62
Video quality default high + mic	25,5	20,5 – 69
Video quality snapshot high	13,2	10 – 12,5
Video quality snapshot medium	5,8 – 6,2	6 – 7
Video quality snapshot low	5,5	5,5 – 6,6
Mic only	3 – 4,5	7 – 8

Supported connection methods:

• direct outgoing TCP/IP connection to TCP port 7615  on Conference Proxy server
• WININET HTTPS connection to TCP port 443 on Conference Proxy server
• WININET HTTP connection to TCP port 80 on Conference Proxy server
• direct HTTPS connection to TCP port 443 on Conference Proxy server
• direct HTTP connection to TCP port 80 on Conference Proxy server

Timeout for a specific connection method is 20 seconds for connection establishment – so total timeout for connection is less than 1 minute.

Supported network types:

• A computer with a static public IP
• A computer with a dynamic public IP
• A computer in a private network behind a firewall with a public IP performing NAT
• A computer in a private network behind a http proxy offering http and/or https protocols

Web Browsers

• Firefox
• Google Chrome
• Microsoft Edge
• Microsoft Internet Explorer
• Opera
• Safari